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XII Biology-Excretory System

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Excretory system of the tapeworms is known as

  1. spark cells

  2. flame cells

  3. fire cells

  4. None of these


Correct Option: B

Nephrons discharge urine in the ______.

  1. collecting duct

  2. ureter

  3. kidney

  4. urethra


Correct Option: A

GTR refers to

  1. Glomerulous Filtration Rate

  2. Glomerular Filtration Rate

  3. Glomerular Filtrate Rate

  4. Glomerulous Filtrate Rate


Correct Option: B

Urea is formed in the

  1. liver

  2. kidney

  3. bladder

  4. urethra


Correct Option: A

Ornithine cycle is known as

  1. urea cycle

  2. urine cycle

  3. blood circulation

  4. None of the above


Correct Option: A

Which of the following is an/are ammoniotelic animal(s)?

  1. Humans

  2. Pigeon

  3. Fish

  4. All the above


Correct Option: C

ADH stands for

  1. antidiuretic hormone

  2. adensin di hormone

  3. adenosine diuretic hormone

  4. None of the above


Correct Option: A

ADH is known as

  1. vasopressin

  2. DCT

  3. ATP

  4. ammoniotelic


Correct Option: A

DCT refers to

  1. direct convoluted tube

  2. distal convoluted tubule

  3. distance convolution tube

  4. distal convoluted tube


Correct Option: B

Vasopressin is released by _______ into the blood stream.

  1. adrenal

  2. pituitary

  3. Both 1 and 2

  4. None of the above


Correct Option: B

Uric acid is ________ in water.

  1. soluble

  2. insoluble

  3. partially soluble

  4. None of the above


Correct Option: B

________ protect(s) the kidneys.

  1. Upper ribs

  2. Lower two pairs of ribs

  3. Both 1 and 2

  4. None of the above


Correct Option: B

Which of the following is a/are uricotelic animal(s)?

  1. Fish

  2. Pigeon

  3. Both 1 and 2

  4. None of the above


Correct Option: B

Pigeons excrete ________ as the main nitrogenous waste.

  1. ammonia

  2. uric acid

  3. Both 1 and 2

  4. None of the above


Correct Option: B

Ammoniotelic animal(s) is/are

  1. fish

  2. hydra

  3. salamander

  4. All the above


Correct Option: D

Which of the following amino acids constitutes a component of urea cycle?

  1. Tryptophan

  2. Phenylalanine

  3. Arginine

  4. Leusine


Correct Option: C

________ is/are absorbed by active transport.

  1. Glucose

  2. Amino acids

  3. Ions

  4. All the above


Correct Option: D

Ammonia is ______ in water.

  1. insoluble

  2. soluble

  3. partially soluble

  4. None of the above


Correct Option: B

Ammoniotelic animals excrete ________ as nitrogenous waste.

  1. urea

  2. uric acid

  3. ammonia

  4. All the above


Correct Option: C

Which of the following enzymes is/are produced by kidney?

  1. Renin

  2. Glomerulin

  3. Both 1 and 2

  4. None of the above


Correct Option: A

Urea is absorbed by

  1. diffusion

  2. active transport

  3. Both 1 and 2

  4. None of the above


Correct Option: A

_______ is the reservoir of the urine in the body.

  1. Urethra

  2. Urinary bladder

  3. Kidney

  4. None of the above


Correct Option: B

Malpighian body is/are

  1. Bowman's capsule

  2. Glomerulus

  3. Both 1 and 2

  4. None of the above


Correct Option: C

Osmo regulation is meant for regulating the

  1. salt content of the animal body

  2. water content of the animal body

  3. both salt and water content of the animal body

  4. None of the above


Correct Option: C

Micturition is passing out _______ from _______.

  1. blood, capillaries

  2. urine, urinary bladder

  3. Both 1 and 2

  4. None of the above


Correct Option: B
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